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R2A agar

Bacterial culture medium From Wikipedia, the free encyclopedia

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R2A agar (Reasoner's 2A agar) is a culture medium[1] developed to study bacteria which normally inhabit potable water.[2] These bacteria tend to be slow-growing species and would quickly be suppressed by faster-growing species on a richer culture medium.[3]

Since its development in 1985,[3] it has been found to allow the culturing of many other bacteria that will not readily grow on fuller, complex organic media.[citation needed]

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Typical composition (% w/v)

Final pH 7.2 ± 0.2 @ 25 °C

References

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